Unable to receive a permanent access token for my Shopify App

Question

I\'m following the Shopify instructions to get a permanent token for a particular app/shop combination (http://api.shopify.com/authentication.html).

I\'m able to get the

Answer 1

I think we have similar minds! I was experiencing the exact same issue as you. I think we were both confused by the documentation!

I generated my app using the shopify_app gem. This created the following method in login_controller.rb:

def finalize
  if response = request.env['omniauth.auth']
    sess = ShopifyAPI::Session.new(params['shop'], response['credentials']['token'])
    session[:shopify] = sess        
    flash[:notice] = "Logged in"
    redirect_to return_address
    session[:return_to] = nil
  else
    flash[:error] = "Could not log in to Shopify store."
    redirect_to :action => 'index'
  end
end

Line 3 of that (ShopifyAPI::Session.new) is doing Step 2 of the Shopify Authentication for us. It's fetching us a permanent access token.

The variable sess will now contain two things:

1. The *.myshopify.com domain of the shop (url)
2. A permanent access token to save for future use (token)

As John Duff said - we already have an access token! We don't need to POST to https://SHOP_NAME.myshopify.com/admin/oauth/access_token. It's handled for us in the code generated by the shopify_app gem.

In my finalize method, I added a line:

def finalize
  if response = request.env['omniauth.auth']
    sess = ShopifyAPI::Session.new(params['shop'], response['credentials']['token'])

    Shop.find_or_create_by_myshopify_domain(sess.url, access_token: sess.token)
  ...

This creates a shop and assigns it the access token. My Shop model has the attributes myshopify_domain and access_token.

In the future, if I want to use the ShopifyAPI for that shop, I can just follow the instructions found on the shopify_api gem homepage

I spent hours trying to nut this one out. I'm not sure how the documentation could be clearer. Hopefully if the issue comes up again, people find this StackOverflow page!

I hope this was a help for you.

Cheers, Nick